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Labs / Crack SHA1 Hash

  • Challenge
  • Released 09 Oct 2025

Can you crack this SHA1 hash?

A single SHA1 hash stands between you and victory. This cryptographic puzzle challenges you to reverse-engineer the original plaintext from its hashed form. Will you use brute force, rainbow tables, or clever wordlist attacks? The clock is ticking, and the hash is waiting to be broken.

1
Flags
1
Points
Challenge
Pro Exclusive
Start Lab Environment
~1-2 min setup
AWS dedicated
Private instance
Industry standard
Flag
+1 point
First Blood by Malekith at 2025-10-09 16:00:36.0